Throttle regulator



J. J. CASE.

Patented Jan. 17, 1922..

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I'OHN J. CASE, OF SARATOGA SPRINGS, NEW YORK, ASSIG-NOR OF ONE-HALF TOJOHN J WRIGHT, 0F SARATOGA SPRINGS, NEW YORK.

THROTTLE REGULATOR.

inc-i909.

Specification of Letters Patent. 1

Patented Jan. 17, 1922.

To all whom. it may concern: v

Be it known that 1, JOHN J. CASE, a citizen of the United States,residing at Saratogasprings, in the county of Saratoga and State of NewYork, have invented an Improvement in Throttle Regulators, of which thefollowing is a specification.

This invention relates to a throttle regulator and while its use is notso limited, it is iarticularly designed for use in conjunction withinternal combustion engines and employed in motor cars as an acceleratorany iliary to control the carbureter throttle and consequently theadmission of fuel to the manifold and engine in order to obtain asubstantially uniform development and application of the power of theengine. As will be readily understood, in the ordinary form ofaccelerator operated by the foot of the driver, the fuel is admittedwith great irregularity, causing corresponding irregularity in thedevelopment and application of the power, the disadvantages of which areovercome by the use of the device made in accordance with my presentinvention. My improved throttle regulator preferably comprises a casingor body member in which a plunger or its equivalent is mounted toreciprocate or move and the movement thereof controlled by the passageof a suitable liquid from one chamber to another in the casing, the flowof the liquid from one chamber to another being caused by a movement inone direction of the plunger and the return of the liquid permitted by amovement of the plunger in the opposite direction the plunger beingconnected to an celerator rod in any suitable manner so as to make anytoo rapid movements of the accelerator and consequently the throttle ofthe carburetor impossible either in opening the throttle or closing thesame as will be hereinafter more particularly described.

In the drawing:

Fig. 1 is a central longitudinal cross sec tion and partial elevationillustrating the throttle regulator made in accordance with myinvention.

Fig. 2 is a cross section on line 2-2, Fig. 1, and

Fig. 3 is a diagrammatic chart illustrating the differences in thedevelopment and application of the power in the employment of thethrottle regulator herein shown and described, and without the same asat present is common practice.

.l ferring to the drawing. the throttle regulator made in accordancewith this in vention preferably comprises a casin or body member 10which may be cylind iical or of any other configuration, and made of asuitable metal or any other material. At one end, this casing isprovided with a flange 11 and fitted with a cover 12 which is secured tothe flange of the casing bv the ps6 of bolts 18 as illustrated. orotherwise. in the casing 10, as illustrated, there are two compartments,the one indicated at 14c and the other at 15, these compartments beingseparated by a partition wall 16 in which there is a vent 17 making acommunication between the said compartments. This vent is preferablyfitted with a valve 17 operated exterior-1y of the casing in order toregulate the area of'the vent and thus control the rate of flow of theliquid through the same in passing from either compartment to the other.

Associated with the casing there is a plunger 18. This plunger 18 passesthrough a hole 19 provided therefor in the cover 12 and also throughbearings 20 in the partition wall 16, the plunger fitting in the saidbearing and being adapted to be moved therein into and out of its normalposition as indicated in Fig. 1. In order to maintain the plunger 18 inthis initial or normal posi tion, I prefer to employ a spring 22 whichextends between the inner end of the plunger and the base of thecompartment 15 in which a recess is provided for the reception of theinner end of the spring to maintain the same in position. In thecompartment 15 l. also prefer to employ a quantity of mercury 23 orother similar and suitable fluid material which, when the parts are intheir normal position, substantially fills this compartment 15 as shownin the drawing.

The upper or outer end of the plunger is preferably fitted or providedwith a head 24 in which there is a slot 25 to receive a trunnion orother attachment 26 carried by a lever or rod 27 connected to theaccelerator and the throttle of the carbureter in any suitable manner,the connection between the lever 27 and the plunger being a flexiblejoint as will be readily understood.

In the operation of the throttle regulator as hereinbefore described,and as will now be apparent in operating the lever to control thethrottle either in one direction or the other that is to open and closethe same,

the developmentand application of the power will be substantiallyconstant and rapid variations of the same are made impossible. Forexample, and by reference to Fig. 3, it will be seen that when the partsof the apparatus are set to depress the plunger in opening the throttlethe movement of 'the same will be retarded by making it necessary firstto depress the plunger causing the flow of the mercury from thecompartment 15 to the vent 17 to the compartment lat, and the usualeffect of vibrations, due to the travel over rough roads, and of rapidchanges, due to starting and stopping, will be overcome, and that whenthe power is shut off the change is also gradual because the closing oithe throttle is controlled by the return flow of the mercury through thevent 17 from the compartment i l to the compartment 15, the plungerbeing normally forced upwardly and maintained in its initial or normalposition by the use of the spring 22 as hereinbeit'ore described.

I claim as my invention:

1. In an apparatus of the class described, a body having separatecompartments therein, in one of which thereis contained a liquid, aplunger passing through one compartment and into the other compartment,

there being a passage for the liquid from the liquid compartment to theother compartment through which the liquid is caused to pass whendisplaced by the plunger entering the liquid compartment, and a tensiondevice acting in conjunction with the plunger to normally maintain thesame in an initial position in which the liquid employed substantiallyfills the liquid compartment and none of the liquid is contained in theother compartment.

2. In an apparatus of the class described, a body having a transverse.wall dividing the same into compartments, in one of which there iscontained a liquid, a plunger pass ing through one of the saidcompartments and through the said transverse wall in which it isjournaled in a bearing provided therein for the same, and a tensiondevice acting in conjunction with the said plunger to normally maintainthe same in an initial position, there being a passage between the saidcompartments for the flow of the liquid from the liquid compartment tothe other compartment when displaced by the plunger entering the liquidcompartment against the action of the said tension device.

3. In an apparatus of the class described,

,a body having a transverse wall therein dividing the same intocompartments, one of which is substantially filled with liquid, aplunger journaled in the said transverse wall and extending into theliquid compartment, there being a passage in the transverse wall throughwhich the liquid is caused to flow from the liquid compartment whendisplaced by the plunger entering the same, and a tension devicecoacting with the said plunger to normally maintain the same in aninitial position in which the liquid compartment is substantially filledwith the liquid.

4. In an apparatus of the class described, a body having a transversewall therein dividing the same into compartments, one of which issubstantially filled with liquid, a plunger journaled in the saidtransverse wall and extending into the liquid compartment, there being'apassage in the transverse wall through which the liquid is caused toflow from the liquid compartment when displaced by the plunger enteringthe same, a tension device coacting with the said plun ger to normallymaintain the same in an initial position in which the liquid compartmentis substantially filled with the liquid, and means for regulating theflow of the liquid through the said passage.

5. In an apparatus of the class described. a body having a transversewall dividing the same into inner and outer compartments. a plungerpassing through the outer compartment and through a bearing therefor inthe said transverse wall and normally a slight distance into the innercompartment which is substantially filled with a liquid, there being apassage extending through the transverse wall for the flow of the liquidfrom the inner to the outer compartment when displaced by the plungerentering the inner compartment, and a spring extending between the innerend of the said plunger and the oppositely disposed wall of the innercompartment for normally maintaining the plunger in an initial position.7

6. In an apparatus of the class described, a body having a transversewall dividing the same into inner and outer compartments,

a plunger passing through the outer com partment and through a. bearingtherefor in the said transverse wall and normally a slight distance intothe inner compartment which is substantially filled with a liquid. therebeing a passage extending through the transverse wall for the flow ottheliquid. from the inner to the outer compartment when displaced by theplunger entering the inner compartment, a spring extending be tween theinner end of the said plunger and the oppositely disposed wall of theinner compartment for normally maintaining the plunger in an initialposit-ion. and a valve for regulatingthe flow of. the liquid through thesaid passage from one compartment to the other.

Signed by me this 26th day otMarch. 1920.

JOHN J. CASE.

